|
Match
|
Document |
Document Title |
|
|
5513312 |
Method for system-prompted fault clearance of equipment in communcation systems
Contemporary communication systems must have extremely high availability and malfunctioning equipment must be repaired and replaced as quickly as possible. To this end, optical displays are...
|
|
|
5504856 |
Method and apparatus for controlling switching of transmission line
In transmission lines with a redundant structure having a switching control communication channel, the fault status of a transmission line, communication channel data, and transmission line...
|
|
|
5502836 |
Method for disk restriping during system operation
A method for restriping a striped disk array in a computer system without requiring the removal of the system from normal operation provides an efficient method to expand the disk array and...
|
|
|
5463762 |
I/O subsystem with header and error detection code generation and checking
Apparatus is provided for use in an Input/Output (I/O) subsystem. The I/O subsystem is coupled to a serial data transfer medium that transmits data from a sender to a recipient. The I/O subsystem...
|
|
|
5371886 |
System for managing unit-of-work identifiers when a chained, distributed, two phase commit transaction system is severed
A method of managing unit-of-work identifiers in a chained distributed database transaction system. The system has a plurality of processing nodes which are logically connected to form a tree....
|
|
|
5337319 |
Apparatus and method for reconfiguring an image processing system to bypass hardware
An image processing system including a reconfiguration circuit, typically responding to fault detection. The image processing includes a data compressing unit for compressing image data generated...
|
|
|
5327553 |
Fault-tolerant computer system with /CONFIG filesystem
A fault-tolerant computer system employs a pseudo-filesystem to dynamically manage the hardware components. A directory which appears as a standard, hierarchical directory in this filesystem...
|
|
|
5313456 |
Data link protecting system
A line interface circuit on the receiving side detects communication failure in terms of an error rate and informs the supervisory and control unit on the receiving side of the occurrence of the...
|
|
|
5313628 |
Component replacement control for fault-tolerant data processing system
Apparatus is described for component replacement control in a data processing system, with each component being assigned a label that includes a component identifier and a replacement generation...
|
|
|
5278977 |
Intelligent node resident failure test and response in a multi-node system
In a distributed, multi-node system for communicating between a plurality of distributed terminals and one or more central computers, some of which specify command and control information to the...
|
|
|
5245615 |
Diagnostic system and interface for a personal computer
A personal computer has a NVRAM comprising an error log for storing predetermined error log information at predetermined locations therein. The information is accessible by various programs such as...
|
|
|
5199032 |
Microcontroller having an EPROM with a low voltage program inhibit circuit
A microcontroller is provided having an on-chip electrically erasable programmable read-only-memory (EEPROM), which is user programmable via a programming register. The microcontroller includes a...
|
|
|
5185881 |
User repairable personal computer
A preferred embodiment of the user repairable personal computer described for enabling a novice user to repair of personal computer without having to send the unit to a service facility. The...
|
|
|
5184312 |
Distributed built-in test equipment system for digital avionics
A distributed BITE system for a digital avionic system. The avionic system comprises a plurality of LRUs and digital communication devices through which the LRUs can transmit and receive data in a...
|
|
|
5157667 |
Methods and apparatus for performing fault isolation and failure analysis in link-connected systems
The invention relates to methods and apparatus for isolating faults in link-connected systems utilizing fault reports generated from within the system itself. The reports are transmitted to a...
|
|
|
5134712 |
System for recovering failure of online control program with another current online control program acting for failed online control program
In a processing system having a plurality of CPUs, a common storage device is shared by all the CPUs, online control programs are executed by the CPUs, and monitor programs monitor the states of...
|
|
|
5091847 |
Fault tolerant interface station
A fault tolerant interface station for processing and transmitting data, comprising first, second, third and fourth interface units. Each of the first and second interface units includes a receiver...
|
|
|
5086499 |
Computer network for real time control with automatic fault identification and by-pass
A computer network for real time control having redundant components for automated fault identification and automated bypass of identified faulty components. The system includes at least two main...
|
|
|
5020059 |
Reconfigurable signal processor
An interconnection scheme among the processing elements ("PEs") of a multiprocessor computing architecture realizes, through PE reconfiguration, both fault tolerance and a wide variety of different...
|
|
|
4970724 |
Redundancy and testing techniques for IC wafers
An array of processing element nodes are provided on a semiconductor wafer. A mixed redundancy approach is preferably employed wherein two spare core logic circuit modules 52, 58 are available for...
|
|
|
4970644 |
Reconfigurable well logging system
A method and apparatus for producing a reconfigurable well-logging data acquisition and interpretations system for performing a plurality of discrete data processing functions and which achieves a...
|
|
|
4965717 |
Multiple processor system having shared memory with private-write capability
A computer system in a fault-tolerant configuration employs multiple identical CPUs executing the same instruction stream, with multiple, identical memory modules in the address space of the CPUs...
|
|
|
4964105 |
Replacement switch
A procedure for replacing an existing switch (62) with a greater-capacity replacement switch (12) in a communication system (10) is disclosed. The replacement switch (12) has redundant interconnect...
|
|
|
4939736 |
Protection against loss or corruption of data upon switchover of a replicated system
In a protection-switching arrangement, each optical output of replicated switching nodes (12,13) is connected to the input of an error detector (17,18) and of an optical delay line (19,20); their...
|
|
|
4933838 |
Segmentable parallel bus for multiprocessor computer systems
A multiprocessor system includes a segmentable parallel bus for dividing the multiprocessor system into several independent groups of processors. Each group of processors can access its segment of...
|
|
|
4907232 |
Fault-tolerant parallel processing system
A fault tolerant processing system which includes a plurality of at least (3f+1) fault containment regions each including a plurality of processors and a network element connected to each of the...
|
|
|
4858233 |
Redundancy scheme for multi-stage apparatus
A multi-stage apparatus has an input which is coupled to an output by way of a plurality of first stages. The stages are sequentially coupled together to form a chain. A spare stage, which is...
|
|
|
4789985 |
Document processing apparatus having fauet detection capabilities
A document processing apparatus that utilizes a plurality of resources, such as CRT displays and printers, are provided. A control system can determine if a resource has a fault and can select an...
|
|
|
4774455 |
Method for automatic guard selection in automatic test equipment
During the testing of circuit boards with Automatic Test Equipment in some circuit configurations the performance of a component may not be as expected even though it is sound due to the influence...
|
|
|
4752927 |
Synchronous changeover
A synchronous changeover device detects both peak amplitude and pulse width, automatically switching between sets of signals without a noticeable glitch when a fault is detected. The signals of...
|
|
|
4722084 |
Array reconfiguration apparatus and methods particularly adapted for use with very large scale integrated circuits
An array reconfiguration apparatus is employed in large integrated circuits and large systems. The apparatus makes use of spare wires and/or computation elements which are incorporated in the...
|
|
|
4691317 |
Feature deselect control
The present invention is concerned with a method of deselecting the features of a xerographic printing machine to be able to continue operation of the machine even though a fault has been detected....
|
|
|
4644498 |
Fault-tolerant real time clock
Three hardware real time clock subcircuits are connected in a triple modular redundancy configuration to assure continued operation if one subcircuit fails. A power supply or processor failure will...
|
|
|
4633467 |
Computer system fault recovery based on historical analysis
A method of identifying faulty units in a computer-controlled system. The system units generate error reports in response to the detection of error conditions. When an error report is received, an...
|
|
|
4613959 |
Zero power CMOS redundancy circuit
A redundancy circuit that consumes no power before or after activation switches a pair of output nodes from a first set of complementary logic levels to an inverted set when it is activated by...
|
|
|
4602349 |
Digital polarity correlator
A self-testing facility is provided for a correlator comprising a delaying shift register (DSR) whose stages are respectively associated with a set of channels each incorporating a coincidence...
|
|
|
4590549 |
Control system primarily responsive to signals from digital computers
A system controlled by digital computers includes first and second dissimilar digital computers which are distinctly programmed to generate respective nominally identical control signals...
|
|
|
4583224 |
Fault tolerable redundancy control
A redundant control system in which three output signals from three equivalent signal processors are compared with each other to judge whether each of the output signals is normal or abnormal, an...
|
|
|
4575842 |
Survivable local area network
Enhanced availability and survivability of communications between geographically remote locations with a minimum of redundancy of transmission facilities and media is provided by a survivable bus...
|
|
|
4503535 |
Apparatus for recovery from failures in a multiprocessing system
A number of intelligent nodes (bus interface units-BIUs and memory control units-MCUs) are provided in a matrix composed of processor buses (105) with corresponding error-reporting and control...
|
|
|
4376300 |
Memory system employing mostly good memories
A memory system is described which employs a plurality of "mostly good" memory chips. A redundant memory chip is used to store data designated to the defective locations in the mostly good...
|
|
|
4365318 |
Two speed recirculating memory system using partially good components
A CCD recirculating memory system is disclosed in which "partially good" CCD memory chips and "all good" memory chips are mounted on memory cards. The defective portions of the partially good chips...
|
|
|
4327437 |
Reconfiguring redundancy management
Input signals from sensor (S) in a redundancy management system are provided redundantly in parallel so that a primary control signal may be selected. Median value signals for groups of three...
|
|
|
4254477 |
Reconfigurable memory circuit
The disclosed device uses an interconnect switch for the selective coupling of serial memory elements in series with other memory elements. A control unit may test elements, designate some of the...
|
|
|
4188670 |
Associative interconnection circuit
The disclosed apparatus uses an associative memory technique for the selective coupling of circuit elements to a data bus wherein each element is assigned an associative address and is coupled to...
|
|
|
4150428 |
Method for providing a substitute memory in a data processing system
A method for substituting one memory module for another, faulty, memory module comprises designating and marking a memory module as the substitute module, which, upon detection of a fault in the...
|
|
|
4133039 |
True mean rate measuring system
A micro-computer circuit including a read-only memory averages pulse information at a plurality of averaging levels with each averaging level corresponding to a progressively increasing maximum...
|
|
|
4133027 |
Process control system with backup process controller
A process control system having a plurality of process controllers each connected to a data highway to receive and send process control data is controlled by a backup director receiving input...
|
|
|
4074354 |
Process control system
A process control system of the type arranged to accept sensing signals from field sensing devices, to digitally process data represented thereby, and to supply control signals to field control...
|
|
|
4070704 |
Automatic reconfiguration apparatus for input/output processor
An automatic reconfiguration hardware capability for automatically altering the local memory/processor configuration and reinitiating a bootload sequence in the event of a failure in the start-up...
|